Chroicocephalus Ridibundus Bird

English Name:  Black-headed Gull
Latin Name:  Chroicocephalus ridibundus
Protonym:  Larus ridibundus Syst.Nat.ed.12 ed.12 p.225
Taxonomy:  Charadriiformes / Laridae / Chroicocephalus
Taxonomy Code:  bkhgul
Type Locality:  European Seas.
Author:  Linnaeus
Publish Year:  1766
IUCN Status:  Least Concern

DEFINITIONS

Chroicocephalus
(Laridae; syn. Larus † Black-headed Gull L. ridibundus) Gr. χρωικος khrōikos  coloured  < χρωζω khrōzō  to colour, to stain; -κεφαλος  -kephalos  -headed  < κεφαλη kephalē  head; "SUB GENUS 3.  CHROICOCEPHALUS.  Nobis.   Sp. 1. C. CAPISTRATUS.  Temminck.  Syn. Larus Capistratus, Temm. Jenyns.  Mouette a Mosque [sic] Brun, Temm.  Brown-headed Gull, Eyton.   Sp. 2. C. RIDIBUNDUS. Linnæus.  Syn. Larus Ridibundus, Lath. Shaw, Linn. Gmel.  L. Cinerarius Linn. Gmel.  Gavia Ridibunda Phænicopos, Briss.  L. Cinereus, Ray. Will.  La Mouette Rieuse ou à Capuchon Brun, Temm.  Le Mouette Rieuse, and Le Petite Mouette Cendrée, Buff.  Black-headed Gull, and Red-legged Gull, Penn. Lath. Bewick.   Sp. 3. C. MINUTUS. Pallas.  Syn. Larus Minutus, Pall. Gmel. Shaw, Temm.  L. Atricilloides, Gmel.   Mouette Pygmiée [sic], Temm.  Little Gull, English Authors." (Eyton 1836); "Chroicocephalus for a new subgenus under Larus, Linn., for the reception of such gulls as have the tarsi slender, thighs considerably denuded, hind toe very small, head only, or head and upper part of neck, dark-coloured in the summer state of plumage   ...   derived from two Greek words, κροικος, coloured, and κεφαλη, head; signifying that the birds classed under that name have coloured heads" (Eyton per Wharton 1878); "Chroicocephalus Eyton, Hist. Rar. Brit. Bds., Cat., p. 53, 1836—type, by subs. desig. (Gray, List Gen. Bds., p. 79, 1840), Larus capistratus Temminck = Larus ridibundus Linnaeus." (Hellmayr and Conover, 1948, Cat. Birds Americas, Pt. I (3), p. 253).
Var. Chroecocephalus, Chroeocephalus, Chroiococephalus, Chroiocephalus, Chraeococephalus, Chraecocephalus, Chroocephalus, Croicocephalus, Kroikocephalus, Kroicocephalus, Krokocephalus.

ridibunda / ridibundum / ridibundus
L. ridibundus  laughing  < ridere  to laugh.
● ex “Brown-headed Gull” of Albin 1738, and “Petite Mouette grise” or “Mouette cendrée” of Brisson 1760 (Larus).
● ex “Laughing Bird or Quapactototl” of Ray 1713, “Cuculus mexicanus” of Brisson 1760, “Rieur” or “Quapactol” of de Buffon 1770-1783, and “Laughing Cuckow” of Latham 1782 (syn. Piaya cayana mexicana).